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//
/// \file DetectorConstruction.cc
/// \brief Implementation of the B1::DetectorConstruction class

#include "DetectorConstruction.hh"

#include "G4RunManager.hh"
#include "G4NistManager.hh"
#include "G4Box.hh"
#include "G4Cons.hh"
#include "G4Orb.hh"
#include "G4Sphere.hh"
#include "G4Trd.hh"
#include "G4LogicalVolume.hh"
#include "G4PVPlacement.hh"
#include "G4SystemOfUnits.hh"
#include "G4VisAttributes.hh"
#include "G4Colour.hh"
#include <bits/stdc++.h>
using namespace std;
namespace B1
{

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DetectorConstruction::DetectorConstruction(): fScoringVolume(0)
{}

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DetectorConstruction::~DetectorConstruction()
{}

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G4VPhysicalVolume* DetectorConstruction::Construct()
{
  // Get nist material manager
  G4NistManager* nist = G4NistManager::Instance();
  G4bool checkOverlaps = true;

  //
  // World
  //
  G4double xyz = 5.0*cm;
  G4double world_sizeXY = xyz;
  G4double world_sizeZ  = xyz/1000;
  G4double delz  = xyz/1000;
  int i = 0;
  G4Material* world_mat = nist->FindOrBuildMaterial("G4_Al");
  G4Box* solidWorld =
      new G4Box("World",                       //its name
        0.5*world_sizeXY, 0.5*world_sizeXY, 0.5*1000*world_sizeZ);     //its size
  G4LogicalVolume* logicWorld =
    new G4LogicalVolume(solidWorld,          //its solid
                        world_mat,           //its material
                        "World");            //its name
  G4VPhysicalVolume* physWorld =
    new G4PVPlacement(0,                     //no rotation
                      G4ThreeVector(),       //at (0,0,0)
                      logicWorld,            //its logical volume
                      "World",               //its name
                      0,                     //its mother  volume
                      false,                 //no boolean operation
                      0,                     //copy number
                      checkOverlaps);        //overlaps checking
  for(i;i<1000;i++){
    G4Box* picesolidWorld =
      new G4Box("World_solid"+to_string(i),                       //its name
        0.5*world_sizeXY, 0.5*world_sizeXY, 0.5*world_sizeZ);     //its size
    G4LogicalVolume* piceLogicWorld =
      new G4LogicalVolume(picesolidWorld,          //its solid
                          world_mat,           //its material
                          "World_logic"+to_string(i));            //its name
    G4VisAttributes* DetectorVisAtt;
    DetectorVisAtt= new G4VisAttributes(G4Colour(i/1000,1.0,i/1000.0,0.5));
    piceLogicWorld->SetVisAttributes(DetectorVisAtt);
    G4VPhysicalVolume* picephysWorld =
      new G4PVPlacement(0,                     //no rotation
                        G4ThreeVector(0,0,-0.5*1000*world_sizeZ+delz*i),       //at (0,0,0)
                        piceLogicWorld,            //its logical volume
                        "World_phys"+to_string(i),               //its name
                        logicWorld,                     //its mother  volume
                        false,                 //no boolean operation
                        0,                     //copy number
                        checkOverlaps);        //overlaps checking
    fScoringVolume.push_back(piceLogicWorld);
  }
  //
  //always return the physical World
  //
  return physWorld;
}

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}
